CN1185764A

CN1185764A - Counter centrifugel chuck and mounting system

Info

Publication number: CN1185764A
Application number: CN97190108A
Authority: CN
Inventors: 埃里克·G·汉; 罗杰·J·卡南
Original assignee: Power Tool Holders Inc
Current assignee: Power Tool Holders Inc
Priority date: 1996-03-01
Filing date: 1997-02-28
Publication date: 1998-06-24
Also published as: CA2216846A1; AU721030B2; HUP9901980A3; US5820135A; EP0827434A4; JPH11504576A; HUP9901980A2; AU2059097A; BR9702092A; WO1997031740A2; EP0827434A2; KR19990008118A

Abstract

The chuck includes a body with an axial recess and a transverse opening intersecting the recess. First and second cam members are disposed at least partially within the transverse opening and have first and second passages, respectively, which squeeze a cylindrical, slitted inner sleeve that holds the tool shank during rotation of the chuck. The inner sleeve is spring-biased for axial movement relative to the body and has a tapered upper end that is compressed when engaging a tapered retainer sleeve and thereby retains the tool shank during nonrotation of the chuck. An outer sleeve including comolded inner and outer shells, is configured and disposed to move axially about the body. A remote actuating member effects axial movement of the outer sleeve and inner sleeves to permit insertion or withdrawal of the tool shank from the chuck. An engagement mechanism connects the chuck to a drive spindle and also has a mounting mechanism for facilitating automated mounting of the chuck to a drive spindle.

Description

Counter centrifugel chuck and installation system

Background technology

The application is application on March 1st, 1996, and sequence number is 60/012604 the part subsequent application in first to file just on the docket, thereby should be in conjunction with this application as a reference.

The present invention relates to a kind of quick change chuck device, it can be contained on the driving shaft of lathe, and is used for the power drill bit or the instrument of this machine tooling of clamping.

Any power drill head-clamp that will for example hollow out drill bit and so on is held in collet or the dop on the driving shaft, relative this driving shaft of this power drill bit must be locked vertically and radially.In other words, this power drill bit can not relative drive shaft rotates or its shift-in and shifting out vertically relatively.This requirement is considered with regard to particular importance for precision and safety two aspects such as hollowing out high speed lathe such as rig.With regard to legacy equipment, a kind of better simply device that is used for the rotational fixation tool insert, what be included in tool insert end formedly goes out hexagon or other polygon, and pack in the corresponding polygon deep hole that forms in the chuck device in this end.Usually, the operator need use two or a spanner and an axle lock could change one and hollow out drill bit.

In another kind of solution, the collet dop has adopted compressible collet, so that clamping device cutter head rotationally vertically.Adopt the collet dop to be because the polygonized structure that they do not rely on the clamping device on the tool insert to use.Like this, have the power drill bit or the tool insert of any style of obvious round shank portion, the clamping of an all available collet dop.Yet the collet chuck device does not possess in desired quick change in many application scenarios or quick-release function.For example, hollow out the light instrument of rig or glued board trimmer and so on and wish very much to adopt the quick-release chuck device, so that comparatively fast and more conveniently change the various tool cutter head.Yet with regard to traditional quick-release device, the pad part must be polygonal, is formed on to pack in the respective aperture in the quick change chuck device.May require to have a kind of quick change chuck device in this technical field, this device can adopt any type of tool insert, comprises having the tool insert that is roughly the circular tool handle, in order to improve the machine operation of versatility and this class chuck device easy to use.Also wish to have a kind of quick change chuck device, this device can be mounted and dismounted automatically by lathe.

Known in this technical field have various devices, as be used for various light fixed rig, glued board trimmer, dried wallboard cutters or the like hollowed out, and various power tools or power-driven cutter head are fixed or is clamped in various devices on the machine tool chief axis.For example, known have all kinds of collet clamping devices and a quick-release adapter, wherein authorizes the US-5 of Wozar, and 301, No. 961 United States Patent (USP) has just been introduced this class dop.Equally, authorize the US-4 of Martindell, 692, No. 073 United States Patent (USP) has also been introduced a kind of chuck device, it adopted around the driving shaft setting add the sleeve of unbalance loading with spring, in order to the power tool cutter head is fixed on the chuck device.

In addition, the handle of dop part and tool insert also can be out of shape together, so that is difficult to back off tool handle and puller cutter head from the dop.Therefore also wish to have the quick change chuck device that can overcome this class problem.

Hollow out the rig dop, in (and for high-speed condition down other dop of design), the dop body in and the small eccentric of vpg connection can produce very big moment, cause bad and coarse brill of hollowing out.Therefore, the system that this class dop is installed in the highly-specialised on the machine tool chief axis is dreamed of, and tradition is hollowed out the rig installation system and can not be met the demands.All kinds of too accurate installation systems cause processing and mounting cost too high again, because they have increased complexity, so are difficult to be accepted in this manufacture field.Goal of the invention

Therefore, main purpose of the present invention is to provide a kind of quick change chuck device, in order to tool insert or processing unit (plant) are fixed on the lathe driving shaft.

Another object of the present invention is, a kind of quick change chuck device is provided, and the centrifugal force that its utilizes rotation dop to produce is clamped in tool insert in the chuck device.

Another purpose of the present invention is, a kind of quick change chuck device is provided, and it can be installed on the lathe and from lathe with robot apparatus and unload.

Another purpose of the present invention is, a kind of omnipotent quick change chuck device is provided, and its can clamping has the tool insert of sired results tool handle.

A further object of the present invention is, a kind of fast motion quick change chuck device is provided, and it can insert and the puller cutter head easily, and the polygon handle that will instrument and the polygonal hole of chuck device align.

A further object of the present invention is, a kind of quick change chuck device is provided, and it can overcome the locking phenomena of the tool insert in the chuck device.

A further object of the present invention is, a kind of quick change chuck device is provided, and it has reduced chuck device produces catcher mark to pad any trend.

A further object of the present invention is, a kind of quick change chuck device is provided, and it can be used for high speed conditions, and need not adopt those because processing and mounting cost are too high, and their complexity of bringing, in this manufacture field, be difficult to received all kinds of too accurate installation system.

A further object of the present invention is, a kind of quick change chuck device is provided, and how to be used for high speed conditions, and to be made of the parts that are easier to make and assemble, and can match with better simply installation system simultaneously.

Other purpose of the present invention and advantage will state in will illustrating below that a part will understand from explanation that part will be familiar with in the embodiment of this invention.Each purpose of the present invention and advantage can realize with combination by the scheme that claim is pointed out and reach.

For achieving the above object,, implement dop of the present invention in general and comprise a stature body spare, the transverse opening that wherein has axial groove and intersect with this axial groove according to aim of the present invention.The first and second eccentric wheel spares to small part is arranged in this transverse opening, and has first and second passages respectively, and two passages can be arranged to this axial groove coaxial.An inner sleeve spare is arranged in this axial groove, and forms one within it and extend vertically and the hole coaxial with the axial groove of this body spare.

In each preferred embodiment, this inner sleeve is arranged to pass first and second passages, and forms at least one first groove that extends vertically, and first groove is worn the lower end to inner sleeve from the inner sleeve upper end.Inner sleeve also forms at least one second groove that extends vertically, and second groove runs through to the upper end of inner sleeve from the inner sleeve lower end, and extends to separate substantially with parallel mode with first groove.Many first grooves and second groove are preferably symmetrically and alternately around the circumference setting of this inner sleeve.Above-mentioned first groove and the second groove acting in conjunction make inner sleeve radially all flexible with circumferencial direction, so that when applying the power of suitable direction, the diameter and the girth in the hole of permission inner sleeve are not only inflatable but also collapsible.

In the process of tool using cutter head, chuck device clamping device cutter head handle and rotation, above-mentioned first eccentric wheel and second eccentric wheel are forced to shift to clamped position from resting position.Especially when dop rotates, action of centrifugal force can with first and second eccentric wheels from the beginning body spare center line radially outwards draw back each other.Like this, first passage and the second channel groove heart that dissimilates to axial.Because the appearance of this situation, two eccentric first and second cleft hands will be exerted pressure, and radially compress should overlap around the pad of the axial hole that is arranged in cover.The clamping force that the interior cover of pressurized applies is enough to make pad to be located in the axial hole of interior cover, and dop is also in rotation in the process of while tool using under the load effect.In a kind of alternative embodiment, first and second cleft hands directly apply inside radial load to being arranged in a pad of body spare axial groove.

Centrifugal chuck device of the present invention, the spindle clamp that also has tool insert is held in the dop, and dop is at the non-rotary again device of its duty simultaneously.In a preferred embodiment that provides, the static clamping device of pad comprises a taper surface that is formed on the outer surface of interior set upper side.In addition, the static clamping device of this pad also comprises a positioning sleeve, and in the preferred embodiment that provides, positioning sleeve also comprises a cone-shaped inner surface, and its position is relative with the above-mentioned conical outer surface of interior cover.The one mutually correct body spare of axle spring mechanism and apply enough biasing forces against the cone-shaped inner surface of positioning sleeve so that the taper of cover upper end in radially inwardly compressing fully reduces its axial hole diameter, thereby clamps the pad that inserts wherein.

In a preferred embodiment of the chuck device that provides,, provide a kind of auxiliary retention mechanism by the Surface Machining of lining the outer surface of and formation first and second eccentric first and second passages is tapered.Like this, the chuck device rotation is faster, and the centrifugal force that radially acts on each eccentric wheel is also bigger.Each eccentric radial motion, the tapered channel surface that makes them is vertically towards the interior conical outer surface that overlaps of positioning sleeve cone-shaped inner surface direction extruding.This causes bigger thrust again, with the upper end conical outer surface of breasting internal member.The thrust of these increases has further reduced the axial hole diameter of interior cover, thereby further clamps the holder in any pad chuck device on every side that inserts in the chuck device.

A kind of alternative embodiment of the static clamping device of above-mentioned pad relies on each holder in a plurality of collar extensions that form in the cover in being limited in.Each collar extension is processed into taper, and each holder is arranged in such a way in each collar extension: even each holder can stretch into the axial hole certain distance, thereby clamp the pad of staying in the interior cover axial hole.Each collar extension position of cover forms first conical pit in the proximity heads body spare, thus the axially-movable up and down of the mutually correct body spare of interior cover, make each holder radially towards or deviate from the center line movement of axial hole of cover.Extremely similar with interior cover, have in the above-mentioned positioning sleeve of axial groove a plurality of taper collar extensions also can be set, to hold each holder, make each holder can stretch into the axial groove certain distance, thereby clamp the pad of staying in the positioning sleeve axial groove.Each collar extension position of body spare positioned adjacent cover forms second conical pit, so the axially-movable up and down of the mutually correct body spare of positioning sleeve, make each holder radially towards or deviate from the center line movement of the axial groove of positioning sleeve.

Above-mentioned each holder applies enough power, so that the pad clamping is positioned in the axial groove of interior axial hole that overlaps and positioning sleeve, dop is in irrotational inactive state simultaneously.

In the several preferred embodiments that provides, overcoat that can the shell on inner casing constitutes by inner casing and alloying is arranged on around the body spare.The shape of this overcoat and layout are suitable for moving vertically with a lid installation sleeve or with positioning sleeve, and an end of this lid installation sleeve is arranged to relative with the upper end of interior cover.In addition, be provided with a remote actuator, the one end links to each other with overcoat, and its shape and arrange makes the axially-movable that the motion of outer end of this remote actuator produces above-mentioned overcoat.This makes above-mentioned lid installation sleeve (or positioning sleeve) move vertically again, thus make pad insert in cover axial hole or therefrom extract.

Can provide a kind of bindiny mechanism, in order to operationally above-mentioned dop body and any other dop body are connected on the driving shaft.This bindiny mechanism can comprise the internal thread receiving unit of a body spare one end, in order to be threaded with being with externally threaded driving shaft formation.Its alternative is to connect the external screw thread coupling part that machinery can comprise a body spare one end, in order to be threaded with driving shaft tapped coupling part formation.Its alternative is, bindiny mechanism can comprise the threadless female tapered bell and spigot joint part of a body spare one end, and its shape is suitable for being connected with the male cone (strobilus masculinus) shape joint of driveshaft end.Bindiny mechanism also can comprise an installing mechanism, with so that chuck device is installed on the driving shaft automatically, preferably finishes this connection by a body spare of chuck device.Installing mechanism can comprise one group of opening, and opening shape is suitable for laying a set screw, a lentor (torx) instrument, a turret head workman and a square head instrument.

In conjunction with in this manual and become wherein each accompanying drawing of a part, with this specification a kind of embodiment of the present invention has been described, as explaining principle of the present invention.Description of drawings

Fig. 1 is the axial cutaway view of a kind of alternative embodiment of chuck device of the present invention, and this chuck device is locked in together with driving shaft, around the tool insert handle of expressing with imaginary line;

Fig. 2 faces the perspective coating figure for chuck device shown in Figure 1;

Fig. 3 is at the plan view with two finger chuck devices shown in Figure 1 that schematically illustrate, that be in releasing orientation;

Fig. 3 A is the axial cutaway view with the chuck device shown in Figure 1 shown in the releasing orientation;

Fig. 4 is that axial cutaway view is amplified in the part that is in the device parts shown in Figure 3 of releasing orientation;

Fig. 5 is that axial cutaway view is amplified in the part that is in the device parts shown in Figure 1 of engagement state;

Fig. 6 is the hatching Fig. 1 that cut open, that be in engagement state that represents along 6-6 arrow among Fig. 5 and the sectional elevation of 5 shown device parts;

Fig. 7 is the such sectional elevation of similar Fig. 6, but does not have the pad that inserts in the dop, and is in releasing orientation;

Fig. 8 A and 8B are the lathe schematic diagram of for example hollowing out rig that includes quick change chuck device of the present invention;

Fig. 9 is the axial cutaway view of a kind of preferred embodiment of the chuck device of the present invention that engages with machine tool chief axis (mode that disconnects with part illustrates);

Figure 10 is the forward perspective coating figure of chuck device shown in Figure 9;

Figure 11 and 12 is for being used for dop is connected the axial cutaway view of the alternative embodiment of the engaging mechanism on the lathe driving shaft;

Figure 13 is the forward perspective coating figure of the embodiment of the overcoat (part is broken away) of chuck device of the present invention;

Figure 14 is the forward perspective coating figure of another kind of embodiment of the overcoat of chuck device of the present invention;

Figure 15 is the axial cutaway view of second kind of alternative embodiment of chuck device of the present invention, and this chuck device is locked in together with driving shaft one and reinstates around the tool insert handle that imaginary line expresses;

Figure 16 is the forward perspective coating figure of chuck device shown in Figure 15;

Figure 17 is the axial cutaway view of chuck device shown in Figure 15, illustrates with disengaged state, does not have the pad that inserts in the dop;

Figure 18 is the hatching Fig. 1 that cut open, that be in engagement state that represents along 18-18 arrow among Figure 15 and the sectional elevation of 5 shown device parts;

Figure 19 is the such sectional elevation of similar Figure 18, but does not have the pad that inserts in the dop, and is in disengaged state.The detailed description of most preferred embodiment

Now, the one or more examples that provide have been represented in the accompanying drawings in detail referring to each preferred embodiment of the present invention that provides.Each example is unrestricted the present invention in order to explanation the present invention all.In fact, the those of ordinary skill in relevant field is not departing from the scope and spirit of the present invention down, obviously also can make various modification and variation to the present invention, for example, made some feature of description and interpretation as the part of an embodiment, also can be used for another embodiment, to provide another kind of embodiment.Therefore, the present invention should cover this class modification and the variation and their equivalent of making in the claim scope.Same parts in specification and the accompanying drawing are represented with same sequence number.In addition, the similar components of different embodiment is with the digitized representation that differs a coefficient 100 on the numeral.

A kind of preferred embodiment of quick change chuck device of the present invention, form with reverse centrifuge formula dop is illustrated among Fig. 3 and the 8-10, a kind of alternative embodiment of reverse centrifuge formula dop of the present invention is illustrated among Fig. 1-8, and the another kind of alternative embodiment of reverse centrifuge formula dop of the present invention is illustrated among Figure 15-19.According to each specific embodiment, quick change reverse centrifuge formula chuck device of the present invention is represented with sequence number 110,210,310 in each figure usually.As illustrating in imaginary mode (double dot dash line) in Fig. 1 and 15, reverse centrifuge formula chuck device of the present invention can be used for the handle 23,323 that drill bit 27,327 and so on instrument is for example hollowed out in clamping.

Reverse centrifuge formula chuck device of the present invention comprises a stature body spare, and it has is arranged to the front end relative with tail end, the instrument of arranging front end to hold by dop towards need, and the rear end is towards the lathe driving shaft of driven tool.As Fig. 1, shown in 9 and 15, a body spare 25,125,325 shape is suitable for driven shaft 18,118, and 218 (illustrating with double dot dash line among Fig. 1 and 15) drive.

According to the present invention, a body spare comprises a groove that is formed on vertically in the body spare.This alleged axial groove is used to accept a pad, and it is directly or by an internal member between pad and axial groove.This internal member preferably is configured as and has a cylindrical outer surface.Example as shown in Figures 9 and 10, axial groove 120 is formed in the body spare 125, so that along the axial elongation of mutually correct body spare 125.Similarly, as Fig. 2,4,5, shown in 16, axial groove 20,320 also is along the axial setting of a body spare 25,325.Axial groove 120,20,320 have circular cross section, and around a body spare 125,25, vertical axial line of 325 is symmetrical arranged, and this is illustrated in Figure 10 respectively as an example, in 2 and 16.

According to the present invention, a body spare also comprises a transverse holes, and it is arranged to intersect with above-mentioned axial groove, and crossing with the longitudinal centre line of this axial groove.Example as shown in Figures 9 and 10, a body spare 125 also forms a transverse holes 122, it is whole runs through a body spare 125, and groove 120 horizontally sets to axial.In a similar manner at Fig. 2, shown in 4,5,16 and 17, a body spare 25,325 forms a transverse holes 22,322, and they are whole runs through a body spare 25,325, and groove 20,320 horizontally sets to axial.Although at Figure 10, as an example, the longitudinal centre line of its transverse holes 122,22,322 is arranged to mutually correct body spare 125,25 in 2 and 16,325 longitudinal centre line with right angle intersection in axial groove 120,20,320 mode, this angle can be less than 90 degree.Yet when the angle of cut was spent less than 90, the cross stream component of the grasp that is produced by the centrifugal force that acts on the eccentric wheel spare (for example following 60,70) will be less than chuck device 110,210, following maximum grasp that can produce of 310 any given revolutions per second.

Device remarkable advantage provided by the invention is, because a body spare structure is identical, the engaging mechanism of various variation and various form or device all can be operatively coupled on chuck device on the driving shaft, particularly in high revolution application scenario, for example plan clamping when hollowing out the chuck device of drill tools head, people believe the engagement device that needs with quite accurate and complexity usually.Because design of the present invention comprises the transverse holes that runs through a body spare, the quality of a major part body spare is near a body spare and driving shaft engaging portion, the quality of a major part body spare is around driving shaft, can reduce when making work because the moment values that not wishing of being produced on the off-centre of centering and the dop shape between dop and driving shaft occurs.Therefore, various variation of engaging mechanism shape all can be used chuck device of the present invention and be used for cooperating with driving shaft.This engaging mechanism of versatility greatly comprises the parts that those are comparatively simple and have easily processing and assemble.

For example shown in Figure 10-12, a body spare 125 can comprise internal thread receiver section or the part 116 that is formed on its tail end, to engage with a male thread portion 117 (not showing among Figure 10) of driving shaft 118.Similarly, shown in Fig. 1-3 and 15 and 17, a body spare 25,325 can comprise internal thread receiver section or the part 16,316 that is formed on its tail end, engages with the male thread portion 17,317 (representing with imaginary line among Fig. 1 and 15) with driving shaft 18,318.A kind of substitute mode is, as shown in Figure 9, engaging mechanism can comprise and be arranged on a body spare 125 tail ends, and its shape is suitable for an inner conical receiving unit 107 engaging with the male-tapered joint 108 of the end of driving shaft 118.In the another kind of alternative embodiment of engaging mechanism, a body spare can comprise an external screw thread or tapering part, be formed on the driving shaft (not shown) in internal thread or tapering part engage.In addition, in another alternative embodiment of the present invention, a body spare 25,125,325 can be formed on driving shaft 18,118, and 318 in itself.In other words, driving shaft 18,118,318 and a body spare 25,125,325, structure forms a whole respectively.And in another interchangeable preferred embodiment, chuck device 110,210,310 can be configured as a kind of insertion device that inserts in the driving shaft receiver socket.In this socket embodiment, chuck device 110,210,310 can adopt any habitual device, for example be formed separately at a body spare 125,25, the fixed screw (not shown) that a groove in 325 engages is clamped in the socket.

And for example in the another kind of alternative embodiment of the engaging mechanism applicatory shown in Fig. 9 and 11, the opening 105 that an axial aperture is set runs through the bottom of the axial groove 120 (the following describes) of a body spare 125.A set screw 106 passes opening 105 and injects and screw in the screw that is located on the driving shaft 118.In the embodiment shown in fig. 9, driving shaft 118 has a taper joint 108, needs to connect driving shaft 118 and dop 110 with screw 106.Yet in the embodiment shown in fig. 11, the rear end of chuck device 110 is spun on the driving shaft 118 with screw thread, and 106 on screw provides the auxiliary means that are connected of 110 of driving shaft 118 and dops.

Engaging mechanism of the present invention can comprise an installing mechanism, so that a body spare of dop is fixed on the driving shaft of lathe automatically.This installing mechanism can be applied on the chuck device of any kind usually.As shown in figure 12, this installing mechanism can comprise the installing hole 109 of an axial aperture, and its shape is suitable for accepting by lentor (torx) instrument, a kind of instrument in the set of tools that turret head instrument and square head instrument are formed.This class instrument can insert in the installing hole 109, and hold up dop dop is delivered to lathe, and the tail end of mobile dop body 125, make it to align, and be bonded together with lathe driving shaft 118 with the driving shaft 118 of lathe.If driving shaft is that then instrument is rotatable with the thread connecting mode connector body spare 125 shown in Figure 10-12, so that automatically dop 110 is spun on the end of thread of driving shaft 118.

Reverse centrifuge formula chuck device of the present invention has when dop is in static state, when promptly not being the rotation status in when operation, the tool heads spindle clamp is held in mechanism or device in the dop.This static tool spindle clamp is held mechanism to small part and is arranged in axial groove, and vertically away from transverse holes.This static tool spindle clamp is held the shape of mechanism, is suitable for being in static state at chuck device pad is positioned in the axial groove.This static tool spindle clamp is held device can comprise an internal member, an axle spring mechanism and a positioning sleeve.

A kind of preferred embodiment that this static tool spindle clamp is held mechanism comprises an internal member, and its most handy tubular piece of lengthening is vertically made.As Figure 10, shown in 2 and 16, internal member 128,28,328 form interior axial hole 132,32,332 respectively, and they extend vertically.Axial hole 132,32,332 are made of the right cylindrical inner surface, and its shape is suitable for the handle of need with chuck device 110,210,310 clamping tools held wherein.Internal member 128,28,328 cross-sectional profile can be polygon, but preferably circular.When radial loaded not, endoporus 132,32,332 diameter is greater than the maximum gauge of the pad of design chuck device.The diameter in

hole

132,32 is less than axial groove 120,20,320 diameter.

Internal member

128,28 has a lower end 129,29,329 and is positioned at a upper end 130,30,330 on this opposite, lower end.As Fig. 9, shown in 1 and 15, internal member 128,28,328 respectively with a body spare 125,25,325

axial groove

120,20 coaxial settings, and at least partially in each axial groove.Internal member 128,28,328 can distinguish mutually correct body spare 125,25,325 motions.

In preferred embodiment that provides in Fig. 9 and 10 and the alternative embodiment that provides in Fig. 1-3,

interior cover

128,28 also is formed with

first groove

144,44 that extends vertically at least as an example.This first groove also is formed with

second groove

146,46 that extends vertically at least from interior cover 128,28.This

second groove

146,46 extends from that the opposite end of an end that begins to extend with first groove 144,44.Arrange in the same manner with many grooves such as first and second grooves, and separate each other, preferably as Fig. 2 and 10, be arranged in parallel with symmetric mode.

First groove

144,44 and

second groove

146,46 are alternately arranged around the circumferencial direction of

interior cover

128,28 respectively.

First groove

144,44 and 146,46 actings in conjunction of second groove, cover radially all has elasticity with circumferencial direction in making, and to be enclosed within the masterpiece time spent that is subjected to suitable direction in allowing, its diameter and circumference are both inflatable also collapsible.In addition, the interior cover 128,28th among these embodiment is made with the material of stainless steel and so on, and this makes the interior cover that has above-mentioned groove, can elastic type radially compresses repeatedly and expands.

In the preferred embodiment that provides in Fig. 9 and 10, there are a free margins 131 and a conical outer surface 133 in the upper end 130 of interior cover 128.The shape of the outer surface 133 of the upper end 130 of the interior cover 128 inwardly free margins 131 of the upper end 130 of cover 128 is tapered.Like this, the diameter of outer surface 133 reduces along with moving closer to free margins 131.

Except that internal member, be used for a kind of preferred embodiment of the chuck device of the static pad of clamping, also comprise axle spring mechanism, so that mutually correct body spare is executed bias voltage vertically to internal member with respect to an interior cover and a body spare arrangement.As Fig. 9, shown in 1-5 and the 15-17, chuck device 110,210,310 comprise an

axle spring mechanism

141,41 respectively, 341, their setting is with respect to internal member 128,28,328 and a body spare 125,25,325, so that mutually correct body spare 125,25,325 pairs of internal members 128,28,328 execute bias voltage vertically.Fig. 9,1,5 and 17 what is called that provide each chuck device 110,210,310 are subjected to the internal member 128,28,328 of bias state (being also referred to as engagement state).This axle spring mechanism 141,41,341 makes internal member 128,28,328 can overcome spring mechanism 141,41,341 biasing force unloads the position towards pine vertically and moves, and this is at for example Fig. 3, expression among dop embodiment 210 shown in the 3A and 4 and the dop embodiment 310 shown in Figure 15.

Except that internal member 128 and axle spring mechanism 141, a kind of preferred embodiment of the chuck device of the static pad of clamping also comprises a cone-shaped inner surface, and it is arranged to relative with the conical outer surface 133 of the upper end 130 of interior cover 128.As shown in Figure 9, the setting of cone-shaped inner surface 134 is relative with the conical outer surface 133 of the upper end 130 of interior cover 128.Preferably this inner surface 134 is arranged on the positioning sleeve, for example is located on the cone-plate 180 in the upper groove 126 (Fig. 9), this groove 126 is connected with the axial groove 120 of a body spare 125.As shown in Figures 9 and 10, inner surface 134 one of the formation of positioning sleeve 180 are positioned at cover 128 upper ends internal channel 182 on every side.As shown in Figure 9, generally the outer surface 133 with the upper end 130 of interior cover 128 is relative for this internal channel 182.In addition, the part that the configuration of inner surface 134 reduces along with its diameter and form axial taper, relative with the outer surface 133 of the upper end 130 of interior cover 128 substantially part is near the free margins 131 of upper end 130.

As shown in Figure 9, when the inner surface 134 of positioning sleeve 180 contacts with the outer surface 133 of the upper end 130 of interior cover 128, so that radially inwardly oppress 130 o'clock (Figure 10) in upper end towards axial line 21, the diameter of the axial hole that is in bias state 132 of interior cover 128 just fully reduces, thereby promptly inserts pad wherein.The interior cover 128 that 141 pairs of spring mechanisms are in bias state imposes enough big axial force, so that desired compression is carried out in the upper end 130 of cover 128 in 134 pairs of the inner surfaces.

In an alternative embodiment, inner surface 134 can be arranged on the upper end of a body spare 125 itself.Yet, be located at single-piece that a body spare separates on above-mentioned cone-shaped inner surface 134 but make chuck device 110 have better processability and versatility.

In a kind of alternative embodiment of as shown in Figure 4 the chuck device that is used for clamping static tool handle, except that axle spring mechanism 41, the lower end of internal member 128 also is provided with first collar extension 34 that is limited by first anchor ring 36 at least.Equally, in the another kind of alternative embodiment of the chuck device that is used for clamping static tool handle as shown in figure 16, except that axle spring mechanism 341, internal member 328 also limits first collar extension 334 that is formed by first anchor ring 336 at least.Preferably include a plurality of collar extensions 34,334 that form by anchor ring 36,336, and they are arranged around internal member 28,328 with symmetric mode.Draw three first such collar extensions 34,334 in this alternative embodiment.

Shown in Fig. 4 and 16, each size of boring mouth 43,334 all is suitable for holding the holder that can withdraw 37,337 (explained later).Shown in Fig. 5 and 17, the shape and size of each anchor ring 36,336 are suitable for that all such holder 37,337 is radially pushed axial hole 32,332 and arrive predetermined degree.As Fig. 4, shown in 5 and 17, each anchor ring 36,336 is all tapered, and 28,328 outer surface is overlapped in passing in the awl bottom surface, and along with collar extension is radially extended and contraction gradually towards the inner surface of the axial hole 32,332 that constitutes interior cover 28,328.

As Fig. 2, shown in 4,16 and 17, each holder that can withdraw 37,337 can constitute a spherical parts, ball for example, and wherein the diameter of each ball is less than the diameter that passes each corresponding collar extension 34,334 bottom that internal member 28,328 outer peripheral faces form.In any case at the position that the interior axial hole 32,332 of such collar extension 34,334 and internal member 28,328 links to each other, the size of each collar extension 34,334 all should be less than the diameter of each ball 37,337.By this way, each ball 37,337 all can not pass its corresponding collar extension 34,334 from the outer peripheral face of internal member 28,328, and the interior axial hole 32,332 that enters internal member 28,328 fully.

As Fig. 4, this alternative embodiment of the chuck device that is used for clamping static tool handle shown in 5 and 17, the inner surface of a body spare 25,325 also is formed with the first taper round pool 24,324 that communicates with axial groove 20,320.This first or lower sump 24,324 be positioned in the body spare 25,325 of transverse opening 22,322 belows, thereby shown in Fig. 3 A and 17 like that, be positioned at opening 22,322 and have between the receiving unit 16,316 of internal thread.First or lower sump 24,324 be configured as taper in such mode, promptly hole 24,324 more just becomes more shallow near transverse openings 22,322 down.

As Fig. 4, shown in 5 and 17, each retractible first holder 37,337 all is subjected to first anchor ring 36,336 and 24,324 restrictions of the first taper round pool.Shown in Fig. 5 and 17, cover 28,328 is vertically towards a body spare 25 in spring mechanism 41,341 forces, when 325 front end moves, each first holder 37,337 just with corresponding first anchor ring 36,336 contacts, thus be forced to radially inwardly enter first collar extension 34,334.By this way, each holder is in when being subjected to bias state at interior cover 28,328, has the trend of the axial bore of entering 23,332, and contacts with any pad that is arranged in cover.Such contact has produced enough frictional force so that overcome gravity with tool holding in dop, can not rotate during stand under load at instrument relative to dop.As Fig. 3,3A, shown in 4 and 15, when interior cover 28,328 was in releasing orientation, each first holder 37,337 outward radial in the first taper round pool 24,324 moved.

As Fig. 2,4,5 and 15-17 shown in a kind of alternative embodiment that is used for clamping static tool handle chuck device, this quick change chuck device 210,310 comprises a positioning sleeve 80,380, its shaped design becomes to small part to be positioned in the axial groove 20,320 of a body spare 25,325.Shown in Figure 4 and 5, it is relative with the upper end 30 of interior cover 28 that an end of positioning sleeve 80 is arranged to, actual in thereon.Spring mechanism 41 can make positioning sleeve 80 vertically mutually correct body spares 25 move and interior cover 28 same distance like this.Shown in Figure 15-17, the shaped design of a kind of alternative embodiment of positioning sleeve 380 becomes, and it can be arranged between the front end 335 and transverse opening 332 of a body spare 325.

Shown in Fig. 2 and 17, positioning sleeve 80,380 is determined an internal channel 82,382, and it is coaxial with the axial bore of interior cover 28,328 that its shaped design becomes.The diameter of internal channel 82,382 is greater than the maximum gauge of pad 23,323.The diameter of internal channel 82,382 is less than the diameter of axial groove 20,320.

In the alternative embodiment as shown in Figure 2, the lower end of positioning sleeve 80 also is formed with second collar extension 84 that is formed by second anchor ring 86 at least.In alternative embodiment as shown in figure 16, second anchor ring 386 is formed in the positioning sleeve 380, and is formed with one second collar extension 384 at least.Preferably also comprise a plurality of second collar extensions 84,384, wherein each collar extension is formed by second anchor ring 86,386, and these collar extensions are arranged symmetrically in around the positioning sleeve 80,380.Draw three such collar extensions 84,384 in this alternative embodiment.

Shown in Fig. 4 and 17, the size of each second collar extension 84,384 is designed to hold second holder 87,387 (explained later) that can withdraw.Shown in Fig. 5 and 17, the shape and size of each second anchor ring 86,386 are designed to allow above-mentioned corresponding second holder 87,387, radially push axial internal channel 82,382 and arrive preset distance.As Fig. 4, shown in 5 and 17, each second anchor ring 86,386 all is configured as taper, and the outer surface of positioning sleeve 80,380 is passed at its awl end, and along with collar extension is radially extended and contraction gradually towards the inner surface of positioning sleeve 80,380.

Shown in Fig. 2 and 4, each second holder 87 that can withdraw can constitute a spherical parts, ball for example, and the diameter of each ball wherein is less than the diameter that passes each corresponding second collar extension 84 that positioning sleeve 80 outer peripheral faces form.Yet at the position that such collar extension 84 links to each other with the interior axial groove 90 of positioning sleeve 80, the size of each second collar extension 84 all should be less than the diameter of each ball 87.By this way, each ball 87 all can not pass its corresponding collar extension 84 from the outer peripheral face of positioning sleeve 80, enters fully in the interior axial groove 82 of positioning sleeve 80.

Shown in Fig. 3 A and 17, also be provided with second taper circle in the body spare 25,325 of transverse opening 22,322 tops and resist 26,326, they are positioned between the opening 22,322 and front end 35,335 of a body spare 25,325.This second or upper sump 26,326 also communicate with axial groove 20,320.Shown in Figure 4 and 5, upper sump 26 is configured as taper by this way, even upper sump 26 more just becomes darker near transverse opening 22.As shown in figure 17, upper sump 326 is configured as taper by this way; Even upper sump 326 more just becomes more shallow near transverse opening 322.

As Fig. 4, shown in 5 and 17, each retractible second holder 87,387 all is subjected to second anchor ring 86,386 and the second taper round pool, 26,326 restrictions that are formed in the body spare 25,325.As shown in Figure 5, in spring mechanism 41,341 forces cover 28 when the front end 35 of a body spare 25 moved, each second holder 87 just contacted with corresponding second anchor ring 86, thereby is forced in second collar extension 84 radially inside vertically.Similarly, as shown in figure 17, when secondary spring mechanism 343 forces positioning sleeve 380 to move towards the direction away from the front end 335 of a body spare 325 vertically, each second holder 387 just contacts with the second taper round pool 326 with corresponding second anchor ring 386, thereby is forced in second collar extension 384 radially inside.By this way, each second holder is in when being subjected to biased position at positioning sleeve 80, enters axial internal channel 82, and with any pad 23,323 contacts that are arranged in positioning sleeve.Shown in Fig. 4 and 15, each second holder 87,387 can be radially in the second taper round pool 26,326 outwards moves when positioning sleeve 80,380 is in the released position, thus pad 23,323 as Fig. 3, it is released like that 3A and 15 draws.

Reverse centrifuge formula chuck device of the present invention has the device that is used for this dop tool heads handle of clamping, and this dop rotates under the load effect of its mode of operation simultaneously.The device of this dynamic or centrifugal clamping device handle comprises at least one horizontal locking piece, it is arranged in the transverse opening, and have pad is locked in shape in the axial groove, although the horizontal locking device of other type can be with in the present invention, but preferably, a pair of opposed horizontal locking piece is set so that small part is arranged in the first and second eccentric forms of transverse opening.These eccentric wheel spares have first and second passages respectively, they can be arranged to the axial groove of a body spare, with internal member in extend axially hole and coaxial with the inside groove of positioning sleeve.As mentioned above, this unique texture of a body spare allows to adopt the engaging mechanism of varied shape.Be appreciated that this advantage can obtain by any suitable locking piece that operationally is arranged at least a portion transverse opening.

As Fig. 9,10, shown in 1-3 and the 15-17, quick change chuck device 110,210,310 comprises 160,60,360 and one second eccentric wheel spares 170,70,370 of one first eccentric wheel spare.As Figure 10, shown in 2 and 16, first end of the first eccentric wheel spare 160,60,360 forms one first cleft hand 161,61,361 at least.As Figure 10, shown in 2 and 16, the first eccentric wheel spare 160,60,360 with the first end second opposed end, also have one first centrifugal weight part 164,64,364 respectively.The shape of the first eccentric wheel spare 160,60,360, first cleft hand 161,61,361 separately is designed to be able to pass a body spare 125,25,325 transverse opening 122,22,322.In alternative embodiment shown in Figure 2, the first eccentric wheel spare 60 also is provided with another cleft hand 62, and it and first cleft hand 61 separate, and extends in parallel substantially with first cleft hand 61.The shape of another cleft hand 62 of this first eccentric wheel spare 60 also is designed to be able to pass together with first cleft hand 61 transverse opening 22 of a body spare 25.

Similarly, as Figure 10, shown in 2 and 16, first end of the second eccentric wheel spare 170,70,370 forms one second cleft hand 171,71,371 at least.The second eccentric wheel spare 170,70,370 with the first end second opposed end, also have one second centrifugal weight part 174,74,374 respectively.The shape of the second eccentric wheel spare 170,70,370, second cleft hand 171,71,371 separately is designed to be able to pass a body spare 125,25,325 transverse opening 122,22,322.In alternative embodiment shown in Figure 2, the second eccentric wheel spare 70 also is provided with another cleft hand 72, and it and second cleft hand 71 separate, and extend in parallel substantially with it.As Figure 1-3, the shape of another cleft hand 72 of this second eccentric wheel spare 70 also is designed to be able to pass the transverse opening 22 of a body spare 25.

As Fig. 9, shown in 10,2,7 and 16, first cleft hand 161,61,361 of the first eccentric wheel spare 160,60,360, form a first passage 165,65,365 respectively, at least at a body spare 125,25, first

cleft hand

161,61 in 325 the transverse opening 122,22,322, during 361 first predetermined configurations (as Fig. 9,6 and 18), its shaped design Cheng Yutou body spare 125,25,325 axial groove 120,20,320 is coaxial, and surrounds this axial groove.In a preferred embodiment, the shape of

first passage

165,65,

cover

128,28 therefrom passes vertically in being designed to allow.In the alternative embodiment shown in Figure 15-19, the shape of first passage 365 is designed to allow pad 323 therefrom to pass vertically.In addition, among the embodiment shown in Fig. 2 and 7, another cleft hand of the first eccentric wheel spare 60 also forms a first passage 65, at least during first predetermined configurations (as shown in Figure 6) of first cleft hand 61 in the transverse opening 22 of a body spare 25, its shape is coaxial with the axial groove 20 of a body spare 25, and surrounds this axial groove.

As Fig. 9, shown in 10,2,7 and 16, the second eccentric wheel spare 170,70,370 second cleft hand 171,71,371 forms second channel 175 respectively, 75,375, at least at a body spare 125,25,325 transverse opening 122, first predetermined configurations of second cleft hand 171,71,371 in 22,322 is (as Fig. 9, shown in 6,18) during, its shaped design Cheng Yutou body loses 125,25,325 axial groove 120,20,320 is coaxial, and surrounds this axial groove.In a preferred embodiment, the shape of

second channel

175,75,

cover

128,28 therefrom passes vertically in being designed to allow.In the alternative embodiment shown in Figure 15-19, the shaped design of second channel 375 becomes to allow pad 323 therefrom to pass vertically.Similarly, in the alternative embodiment shown in Fig. 2 and 7, another cleft hand of the second eccentric wheel spare 70 also forms a second channel 75, its shaped design becomes during first predetermined configurations (as shown in Figure 6) of second cleft hand 71 in the transverse opening 22 of a body spare 25 at least, the axial groove 20 of its shaped design Cheng Yutou body spare 25 is coaxial, and surrounds this axial groove.

During dynamic operation, promptly when chuck device 110,210 rotates under the load effect, the first eccentric wheel spare 160,60,360 and the second eccentric wheel spare 170,70,370, be forced to inactive state (as shown in Figure 6) and become their clamp position (as shown in Figure 7) from them.Specifically, dop when rotation, action of centrifugal force and with the first centrifugal weight part 164,64,364 and the second centrifugal weight part 174,74,374 from the beginning the center line 21 of body spare 125,25,325 radially outwards draw back.Like this, first passage 165,65,365 and second channel 175,75,375 groove 120,20,320 heart that dissimilates to axial, at this moment first cleft hand 161,61,361 and second cleft hand 171,71,371 exert pressure.

The transverse opening in the first and second eccentric wheel spares and a body spare, the most preferred embodiment of centrifugal clamping device can also comprise interior cover.In the preferred embodiment and any other alternative embodiment, cleft hand 161,171,61,71 exert pressure, with 128,28 compressions of the interior cover around any means handle 23 in the

axial hole

132,32 that will be positioned at cover 128,28.In the alternative embodiment shown in Figure 15-19, cleft hand 361,371 radially acts directly on pressure on the pad 323.

In the preferred embodiment of centrifugal clamping device as shown in Figures 9 and 10, by lower external face 137 with interior cover 128, with the formation first and second eccentric wheel spares 160, first and second passages 165 of 170 first and second cleft hands, 175 Surface Machining is tapered, and a kind of auxiliary clamp mechanism is provided.As shown in Figures 9 and 10, the diameter of interior cover 128 outer surfaces is along with reducing near the lower end of interior cover 128, forms towards the lower end 129 the conical surface.In addition, the surface of first and second passages 165,175 relative with the above-mentioned conical outer surface of interior cover 128 along with also forming the conical surface that diameter reduces near the lower end of interior cover 128, becomes towards the lower end 129 the conical surface.Like this, as shown in Figure 9, the smallest diameter portion of second channel 175 have greater than the maximum gauge of first passage 165 part than major diameter.

In addition, be formed with a counterbore chamber 138 respectively around transverse opening 122 two ends in the body spare 125.The shape in counterbore chamber 138 is suitable for holding in the mode that is slidingly matched with it corresponding first and second centrifugal weight parts of the first and second eccentric wheel spares 160,170.As shown in figure 10, each counterbore chamber 138 is all formed by a planar end surface 139, and this end face is vertical with a cylindrical anchor ring 140.

Chuck device 110 rotations are fast more, and the centrifugal force that radially acts on the eccentric wheel spare 160,170 is big more.Because ring surface 140 (Fig. 9) defines first and second cleft hands 161,171 and be formed on wherein first and second passages 165,175 axially-movable, eccentric wheel spare 160,170 radial motion will internally be overlapped 128 and axially be pressed to the front end 135 of a body spare 125, and then be resisted against on the cone-shaped inner surface 134 of front end 135 conical plate parts 180 of a body spare 125.This will produce the thrust on the conical outer surface 133 of the bigger upper end that is pressed over internal member 128 130.Under the thrust effect of this increase, further reduce to be positioned near the diameter of the axial hole 132 of the internal member 128 the positioning sleeve 180, thereby further increase the clamping force of the chuck device 110 around any means handle that inserts in the chuck device.

In the alternative embodiment shown in Fig. 1 and 15, centrifugal clamping device does not comprise auxiliary clamp mechanism, no matter in the outer surface bottom of cover 28, the surface that still forms first passage 65,365 and second channel 75,375 is not taper.

According to the preferred embodiments of the present invention that provide, wish dop setting tool handle by this way, promptly reduce and use the impression that produces when making pad than the mild

steel material.Groove

144,44 and 146,46 on

interior cover

128,28 and the

interior cover

128,28 is set, helps to realize this characteristic of chuck device of the present invention.

The preferred embodiment of the chuck device that provides according to the present invention comprises a device that cover piece is installed.As shown in Figures 9 and 10, the device of the cover piece of this installation quick change dop 110 comprises a lid installation sleeve 178, and its shape is suitable for being arranged in to small part the axial groove 120 of a body spare 125.As Fig. 2, shown in 4 and 5, the device that this installs the cover piece of quick change dop 210 is included in a following annular flange 83 is set on the positioning sleeve 80, with one with this time annular flange 83 last annular flange 88 parallel that separate with cardinal principle.As Fig. 9, shown in 4 and 5, an end arrangement of above-mentioned lid installation sleeve 178 or positioning sleeve 80 is relative with the upper end 130,30 of interior cover 128,28.In the preferred embodiment as shown in Figures 9 and 10, lid installation sleeve 178 is slidably received within of forming in the positioning sleeve 180 and goes up in the grooves 181, and can it moves axially relatively.In the alternative embodiment shown in Figure 4 and 5, positioning sleeve 80 leans the upper end 30 at interior cover 28, and spring mechanism 41 makes positioning sleeve 80 can vertically mutually correct body spare 25 move the distance the same with interior cover 28.The distal process edge 33 of body spare 25 front ends 35 is engaged between two annular flange 83 and 88, and two annular flange 83 are with the 88 last lower baffle rings that play restriction positioning sleeve 80 (thereby in the restriction cover 28) mutually correct body spare 25 motions.

As shown in Figure 9, above-mentioned lid installation sleeve 178 forms an internal channel 190, and it is coaxial with the axial bore 132 of interior cover 128 that its shaped design becomes.The diameter of this internal channel 190 is greater than the maximum gauge of the pad 23 of chuck device.The diameter of internal channel 190 is less than the diameter of axial groove 120.

In the preferred embodiment as shown in Figures 9 and 10, the dust seal 179 of elastic O-ring form is placed in the cannelure 191 that forms on the inner surface that covers installation sleeve 178.In the alternative embodiment shown in Figure 15-17, the dust seal 379 of elasticity O shape diagram form press fit in the axial groove 320 near the body spare 325 of a body spare 325 front ends 335.Extend axially the equal diameters in hole 332 in the internal diameter of O shape circle 379 and the internal member 328.The chip that dust seal 179,379 produces when plaing a part to stop dust and tool operation enters the inner space.For example this space is the axial hole 132,332 of the interior cover 128,328 that occupies of the handle 123,323 by any instrument of chuck device clamping.

As Fig. 9,10 and 1-3 shown in, quick change chuck device preferred embodiment comprises an

overcoat

150,50, it is provided with around a body spare 125,25 respectively.Shown in Fig. 9 and 2,

overcoat

150,50 forms a cover 152,52.A hole 154,54 that is positioned at the center is formed in this cover 152,52, and its shape is suitable for laying the part of the lid installation sleeve 178,78 that therefrom passes.The cover 152,52 of

overcoat

150,50 press fit over and covers on the installation sleeve 178,78.In the alternative embodiment shown in Figure 4 and 5, cover 52 press fit on the last circular orientation bead 88 of covering installation sleeve 78.

In the preferred embodiment shown in Fig. 9-13, overcoat 150 can be made up of an inner casing 151 and a shell 153, and they are together overlapping and consistent with the outer surface of inner casing 151.Ordinary circumstance, inner casing 151 can be made by the material of stainless steel and so on, and shell can be made by the plastics with great friction coefficient (as the structure or the engineering plastics of glass-filled nylon or glass-filled polypropylene and so on).But shell 153 alloyings are on inner casing 151, and the outer surface of shell 153 is provided with reticulate pattern and has the surface characteristics that can satisfy aesthetics and/or functional requirement.

Above-mentioned centrifugal chuck device 110,210 can comprise a skirt-

type flange

115,15, and it is arranged on

transverse opening

122,22 back, and from the beginning

body spare

125,25 radially extends.Shown in Figure 10 and 2, skirt-

type flange

115,15 forms the

free edge

119,19 that an annular is extended.

Overcoat

150,50 forms a

case part

156,56, and it extends from cover 152,52 vertically, and overlapping with the

free edge

119,19 of the skirt-

type flange

115,15 of a body spare 125,25.In preferred embodiment as shown in Figures 9 and 10, the form of skirt-type flange 115 rounded pads, it press fit on the body spare 125, and is located on the support lug 163.In the alternative embodiment as Figure 1-3, a skirt-type flange 15 and a body spare 25 form an overall structure.

In addition, as shown in figure 13, skirt-type flange 115 is assemblied in after the body spare 125, overcoat 150 is installed on a body spare 125 and the skirt-type flange 115.Then with bottom free edge part (dotting among Figure 10 and the 13) roll of the case 156 of overcoat 150, to form lip 155 as Figure 11 and 12.Lip 155 provides a kind of back baffle ring against skirt-type flange 115, so that a body spare 125 is positioned in the overcoat 150.

As shown in Figure 3, the operator can catch chuck device 110,210 around the

case part

156,56 of

overcoat

150,50, and moves

axially overcoat

150,50 along single arrow 31 directions.After doing like this, chuck device becomes releasing orientation, and can make tool handle 23 of this state inserts or extracts from the

axial hole

132,32 of interior cover 128,28.In the preferred embodiment shown in Fig. 9 and 10, this releasing orientation of chuck device 110 causes covering installation sleeve 178 and leans upper end 130 at interior cover 128.Therefore cover installation sleeve 178 interior cover 128 is moved axially, so that compression spring mechanism 141.In cover this axially-movable of 128 make in the conical outer surface 133 of upper end 130 of cover 128, be disengaged with the cone-shaped inner surface of the conical plate 180 of a body spare 125 front ends.The diameter expansion of the axial hole 132 of cover 128 upper ends 130 in the elasticity of cover 128 materials makes in these conical surfaces 133,134 disengage, and constitute, thus radially outward move, and unclamp the handle of therefrom extracting (or holding) any instrument of (or inserting wherein).

In the alternative embodiment of chuck device, this releasing orientation of chuck device 210 as shown in Figure 3A.Lid installation sleeve 78 leans on the upper end 30 of interior cover 28, then cover 28 in moving vertically, so that compress spring mechanism 41.This of interior cover 28 that enters the released position moves axially, and retractible holder 37,38 is retracted into be arranged on the corresponding

taper round pool

24,26 in the body spare 25.On this direction, pad 23 can insert dop 210 fast or extract from dop 210, and this is schematically showed by the double-head arrow of drawing among Fig. 3 and the 3A.

In the alternative embodiment shown in Figure 15 and 17, by manually first centrifugal weight 386 of the first eccentric wheel spare 360 being shifted to second centrifugal weight 376 of the second eccentric wheel spare 370, the static tool spindle clamp is held device and is forced into releasing orientation.This can be placed on by the thumb with the operator on wherein one (366 or 376), and its forefinger or middle finger are placed on another part (376 or 366), and two relative fingers of mutual extrusion operator, realize the position as shown in figure 15 until the orientation of two eccentric wheel spares 360,370.

As shown in figure 17, an end of interior cover 328 and positioning sleeve 380 is processed into inclination shape, to form the eccentric wheel driven surface 347 of an inclination.Shown in Figure 16 and 17, the first eccentric wheel spare 360 is provided with a straight outer eccentric wheel face 348, and its end is the boundary with the step surface 349 of walking crosswise setting.Equally, as shown in figure 17, the second eccentric wheel spare 370 is provided with a straight outer eccentric wheel face 348, its end is the boundary with the step surface 349 of walking crosswise setting, along with eccentric wheel spare 360,370 motions toward each other in the transverse opening 322 of a body spare 325, each corresponding step surface 349 final its corresponding eccentric wheel driven surface 347 engages, cause internal member to overcome the biasing force of spring mechanism 341 and axially-movable, cause positioning sleeve 380 to overcome the biasing force of secondary spring mechanism 343 and axially-movable simultaneously.

Among the embodiment shown in Figure 15-19, provide at engagement state the static tool spindle clamp has been held the device that device is executed bias voltage.Shown in Figure 15-19, one first crossed strip mechanism 345 and one second crossed strip mechanism 385 are placed between the first and second eccentric wheel spares 360,370, execute bias voltage so that at engagement state the static tool spindle clamp is held device.Shown in Figure 17-19, an end of first crossed strip 345 is placed in the spring groove 369 that constitutes the first eccentric wheel spare 360, and is pressed against on the free end 73 of second cleft hand 371 of the second eccentric wheel spare 370.Equally, an end of second crossed strip 385 is placed in the spring groove 389 that constitutes the second eccentric wheel spare 370, and is pressed against on the free end 368 of first cleft hand 371 of the first eccentric wheel spare 360.Figure 18 illustrates two crossed strips 345,385 that are in compressive state.Figure 19 illustrates them and is in incompressible state.

Figure 15-19 also provides a kind of device in the transverse opening that a kind of near small part eccentric wheel spare is positioned at a body spare.By the elongated slot 392 that in first and second cleft hands 361,271 of the first and second eccentric wheel spares 360,370, is shaped respectively, 393, set screw 394 is screwed out along the screwed hole 395 that is horizontally through a body spare 325, so that set screw 394 is goed deep into groove 392, in 393, and on the free end of first and second cleft hands 361,371 of the first and second eccentric wheel spares 360,370, form respectively and stop bead 396,397, so that when eccentric wheel spare 360,370 is separated from each other a preset distance, lock mutually.

In the preferred embodiment that schematically illustrates as Figure 14, provide a kind of remote actuator 157, its end is connected on the overcoat 150.This can realize by any traditional mode, for example is shaped by as shown in figure 14 embedding or the fork-shaped bead that press fit between the upper and lower packing ring on the shell 153 of overcoat 150 realizes.The axially-movable that the shape of remote actuator 157 makes the motion of its far-end produce overcoat 150.This also can realize by any traditional approach, for example realizes by the linkage that terminates in the button 158 that is contained on the lathe (illustrating with dotted line in Figure 14).In the proper implements application scenario, this linkage can be direct and/or disconnected mode, rather than indirect and/or connected mode.Overlap 128 in the motion of the button 158 of far-end makes and produce axially-movables, thereby cover 128 returns to its released position in can making,, or therefrom extract so that pad is inserted the axial hole 132 of interior cover 128.

The present invention comprises that also its structure is suitable for driving any traditional machine tool that adopts above-mentioned quick change chuck device clamping tools cutter head, and for example referring to Fig. 8 A and 8B, a kind of traditional machine tool 58 illustrates with schematic form.Traditional machine tool 58 can comprise that example hollows out rig as already described, or any type of lathe, as the glued board trimmer, perhaps wishes to adopt any lathe of above-mentioned quick change chuck device 210.In the embodiment shown in Fig. 8 A, chuck device 210 is by suitable locking device 59, and screw connection for example discussed above or Connection Block cooperate with the driving shaft 18 of instrument 58.Among the embodiment shown in Fig. 8 B, chuck device 210 forms integral body with driving shaft 18.

The present invention is applicable to any lathe, and wherein tool insert need be driven in rotation, and this device is specially adapted to hollow out rig and glued board trimmer such as the rotating speed of having relatively high expectations.Yet this does not mean it is limitation of the present invention, and in fact, those of ordinary skill in the art is not departing from the scope and spirit of the present invention under the condition, obviously also can make various modification and variation to the present invention.

Although the preferred embodiments of the present invention are described with specific term, such explanation only for ease of explaining, should be appreciated that under spiritual essence that does not break away from claim and scope and also can make multiple conversion and variation.Thereby the present invention should cover various modification and the variation that falls into each claim scope, and their equivalent.

Claims

1. quick change chuck device comprises:

One has a body spare that forms an axial groove within it, and a described body spare also comprises a transverse opening that intersects with described axial groove;

One first eccentric wheel spare, at least form first cleft hand that is positioned at its first end, described first cleft hand is configured as the described transverse opening that passes a described body spare, described first cleft hand forms a first passage, its shape is during at least the first configuration of described first cleft hand of the transverse opening that is positioned at a described body spare to small part, and is coaxial with the described axial groove of a described body spare; With

One second eccentric wheel spare, at least form second cleft hand that is positioned at its first end, described second cleft hand is configured as the described transverse opening that passes a described body spare, described second cleft hand forms a second channel, its shape is during at least the second configuration of described second cleft hand of the transverse opening that is positioned at a described body spare to small part, and is coaxial with the described axial groove of a described body spare.

2. device as claimed in claim 1 also comprises an overcoat, and its shape and position are around a described body spare.

3. device as claimed in claim 2 also comprises a remote actuator, and its end is connected described outer putting, so that described overcoat produces axially-movable.

4. device as claimed in claim 2, wherein, described overcoat comprises that an inner casing and one are shaped jointly with described inner casing and are stacked in the shell of described inner casing outer surface.

5. device as claimed in claim 4, wherein, described shell is made with the plastics of alloying on described inner casing.

6. device as claimed in claim 1 also comprises an internal member, and it arranges vertically, and is arranged in the described axial groove of a described body spare and described first and second passages to small part, and described internal member forms an endoporus of elongation vertically.

7. device as claimed in claim 6, wherein, described internal member forms a conical outer surface, and described first and second passages of described each first and second eccentric wheel spare, forms one with the described interior relative cone-shaped inner surface of described conical outer surface that overlaps.

8. device as claimed in claim 6, wherein, described internal member has the upper end of the relative position of a lower end and a position and described lower end, cover also forms at least one axially extended first groove in described, the end of described first groove from described upper end and described lower end, the other end in described upper end and described lower end extends.

9. device as claimed in claim 8, wherein, described internal member also forms at least one axially extended second groove, and described second groove extends to described upper end from described lower end, and separates with described first groove.

10. device as claimed in claim 8, wherein, the described upper end of described internal member has a free edge and an outer surface, the shape of the described outer surface of the described upper end of described interior cover, and the described free edge towards the described interior described upper end of overlapping tilts vertically.

11. device as claimed in claim 10, also comprise a positioning sleeve, its one of formation is positioned at around the described upper end of described cover, and with described in the relative internal channel of described outer surface of described upper end of cover, described internal channel forms an inner surface, since with described in the relative described inner surface of described outer surface of described upper end of cover, near the described free edge of described upper end, its shape reduces with diameter and axioversion.

12. device as claimed in claim 11 wherein, on one second end relative with described first end of the described first eccentric wheel spare, forms one first centrifugal weight part; With

On one second end relative with described first end of the described second eccentric wheel spare, form one second centrifugal weight part, being shaped as of described second cleft hand, when described first and second cleft hands are arranged in described transverse opening, so that the axial groove of described first and second passages and a described body spare to timing, is closed with the described first cleft hand interworking.

13. device as claimed in claim 12 also comprises:

An axle spring mechanism, its described relatively internal member and described body spare are provided with, thereby a described relatively body spare axially is biased into a position that is subjected to bias voltage with cover in described, and the biasing force that described interior cover overcomes described spring mechanism moves to an off-position vertically;

One second taper round pool, it is arranged in the described body spare, is positioned at the opposite side of described transverse opening, and communicate with described axial groove, the shape of the described second taper round pool gradually near described transverse opening the time, forms taper in the ever-increasing mode of its degree of depth;

At least one retractible second holder, described second holder is by described at least the second collar extension and the restriction of described taper round pool;

Wherein, described relatively internal member of described positioning sleeve and described spring mechanism setting, a so that described relatively body spare axial bias to a position that is subjected to bias voltage, described positioning sleeve overcomes the biasing force of described spring mechanism, can axially move to an off-position, described second holder contacts with described second anchor ring, so that be in described when being subjected to biased position at described lid installation sleeve, radially inwardly stretch into described passage, described second holder radially outwards enters the described second taper round pool when described positioning sleeve is in described off-position.

14. device as claimed in claim 11 also comprises:

An axle spring mechanism, its described relatively internal member and described body spare are provided with, so that a described relatively body spare axially is biased into a position that is subjected to bias voltage with cover in described, cover overcomes described spring mechanism biasing force in described, can axially move to an off-position, the described inner surface of described positioning sleeve contacts with the described outer surface of the described upper end of described interior cover, so that when cover is in the described position that is subjected to bias voltage in described, radially inwardly compress described upper end, thereby reduce to be enclosed within described the axial hole diameter of described biased position, described internal member overcomes the biasing force of described spring mechanism, can axially move to an off-position, so that when allowing the diameter of described axial hole in described, to overlap to be in described off-position, be in and describedly increase to some extent when being subjected to biased position, the described upper end of cover is overlapped described in when being in described off-position in described, can be radially outwards mobile; With

A lid mounting kit, be provided with the coaxial internal channel of described axial hole of its shape and described interior cover, described relatively internal member of described lid installation sleeve and described spring mechanism setting, so that described relatively internal member is biased to a position that is subjected to bias voltage vertically, the biasing force that described lid installation sleeve overcomes described spring mechanism can move vertically, so that cover in described is moved to its off-position.

15. device as claimed in claim 6, also comprise an axle spring mechanism is set, so that a described relatively body spare is biased into a position that is subjected to bias voltage with cover in described vertically, described interior cover overcomes described spring mechanism biasing force and can move to an off-position vertically.

16. device as claimed in claim 15, also comprise one first taper round pool, it is arranged in the described body spare, be positioned at a side of described transverse opening, and communicate with described axial groove, near described transverse opening, the mode that constantly shoals with its degree of depth forms taper to the shape of the described first taper round pool gradually.

17. device as claimed in claim 16, wherein, described internal member also forms at least one first collar extension, and it is made of one first anchor ring, the shape of this first anchor ring is suitable for laying a retractible holder, and allows described holder radially to enter described axial hole to arrive a preset distance.

18. device as claimed in claim 17, also comprise at least one retractible first holder, it is by described at least one collar extension and the restriction of the described first taper round pool, described at least one holder contacts with described at least one anchor ring, so that cover is in described when being subjected to biased position in described, radially inwardly stretch into described hole, described holder overlaps in described when being in described off-position, radially outwards enters the described first taper round pool.

19. device as claimed in claim 6, wherein, the described first eccentric wheel spare forms one first centrifugal weight part in the first end second opposed end described with it; With

The described second eccentric wheel spare forms one first centrifugal weight part in the first end second opposed end described with it; The shaping of described second cleft hand makes to be arranged in described transverse opening when described first and second cleft hands, and the described axial groove of described first and second passages and a described body spare to timing, is cooperatively interacted with described first cleft hand.

20. device as claimed in claim 6 also comprises:

A positioning sleeve, it forms the coaxial internal channel in described hole of a shape and described interior cover, the shaped design of described positioning sleeve, the feasible described axial groove that is arranged in a described body spare to small part;

Wherein, described positioning sleeve also comprises at least one second collar extension, it is made of one second anchor ring, and the shape of this second anchor ring is suitable for laying retractible second holder, and allows described second holder radially to enter described inside groove to arrive a preset distance.

21. device as claimed in claim 20 also comprises:

An axle spring mechanism, its described relatively internal member and described body spare are provided with, so that a described relatively body spare is biased into described internal member a position that is subjected to bias voltage vertically, the biasing force that described internal member overcomes described spring mechanism can axially move to an off-position;

One second taper round pool, it is arranged in institute's art body spare, is positioned at the opposite side of described transverse opening, and communicates with described axial groove, and the shape of the described second taper round pool near described transverse opening, forms taper in the ever-increasing mode of its degree of depth gradually;

At least one retractible second holder, described second holder is by described at least the second collar extension and the restriction of the described second taper round pool;

Wherein, described relatively internal member of described positioning sleeve and described spring mechanism setting, a so that described relatively body spare axial bias to a position that is subjected to bias voltage, described positioning sleeve overcomes the biasing force of described spring mechanism, can axially move to an off-position, described second holder contacts with described second anchor ring, so that be in described when being subjected to biased position at described positioning sleeve, radially inwardly stretch into described internal channel, described second holder radially outwards enters the described second taper round pool when described positioning sleeve is in described off-position.

22. device as claimed in claim 6 also comprises:

A lid installation sleeve is provided with its shape and the described interior coaxial internal channel of described axial hole that overlaps, and the shape of described lid installation sleeve is suitable for being arranged in to small part the described axial groove of a described body spare; With

An overcoat, its shape and layout can center on a described body spare, and wherein said overcoat comprises a cover, and described cover forms a hole that is arranged on the center, and its shape is suitable for laying the described lid installation sleeve that therefrom passes.

23. device as claimed in claim 22, wherein, described body spare forms a skirt-type flange that radially extends, it is positioned at described transverse opening below, and forming the free edge that circumferentially extend on an edge, the described cover of wherein said package assembly press fit on the described lid installation sleeve by the described hole that is arranged on the center, and wherein said overcoat forms a case part, it extends vertically from described cover, and superimposed with the described free edge of described skirt-type flange.

24. device as claimed in claim 1 also comprises an engaging mechanism, in order to operationally device is connected on the driving shaft.

25. device as claimed in claim 24, wherein, described engaging mechanism comprises an internal thread receiving unit that is located at a described body spare one end, is used for being connected with the external screw thread drive shaft screw thread.

26. device as claimed in claim 24, wherein, described engaging mechanism comprises an external screw thread coupling part that is located at a described body spare one end, is used for being threaded with the internal thread receiving unit of driving shaft.

27. device as claimed in claim 24, wherein, described engaging mechanism comprises the non-threaded interior receiving unit that is located at a described body spare one end, and its shape is suitable for being connected with the male-tapered joint of driveshaft end.

28. device as claimed in claim 24, wherein, described engaging mechanism comprises an installing mechanism, so that help a described body spare automatically to be fixed on the driving shaft of lathe.

29. device as claimed in claim 28, wherein, described installing mechanism comprises at least one hole, and its shape is suitable for laying by lentor (torx) instrument, a kind of instrument in the set of tools that turret head instrument and square head instrument are formed.

30. a quick change chuck device is used to be clamped in the pad of higher revolutions per minute application scenario, comprising:

One has a body spare that forms an axial groove within it, and described axial groove is symmetrical arranged around a vertical axis line, and a described body spare also forms a transverse opening that therefrom passes, and it is arranged to cross described axial groove, and intersects with above-mentioned vertical axis line;

At least one horizontal locking piece is arranged on described transverse opening, and its shape is suitable for pad is locked in the described groove;

A static tool spindle clamp is held mechanism, it is arranged to be arranged in described axial groove to small part, and longitudinally away from described transverse opening, described static tool spindle clamp is held the shape of mechanism, make and when device is in static state, pad to be positioned in the described axial groove; With

An engaging mechanism is in order to operationally to be connected device on the driving shaft.

31. device as claimed in claim 30, wherein, described engaging mechanism comprises an internal thread receiving unit that is located at a described body spare one end, so that be connected with the external screw thread drive shaft screw thread.

32. device as claimed in claim 30, wherein, described engaging mechanism comprises an external screw thread coupling part that is located at a described body spare one end, so that be threaded with the internal thread receiving unit of driving shaft.

33. device as claimed in claim 30, wherein, described engaging mechanism comprises the non-threaded interior receiving unit that is located at a described body spare one end, and its shape is suitable for being connected with the male-tapered joint of driveshaft end.

34. device as claimed in claim 30, wherein, described engaging mechanism comprises an installing mechanism, automatically is fixed on the driving shaft of lathe in order to help a described body spare.

35. device as claimed in claim 34, wherein, described installing mechanism comprises at least one hole, and its shape is suitable for laying by lentor (torx) instrument, a kind of instrument in the set of tools that turret head instrument and square head instrument are formed.

36. a quick change chuck device comprises:

Form a stature body spare of an axial groove within it, so that hold an internal member, a described body spare also comprises a transverse opening, its described relatively axial groove horizontally set;

A cylindrical shape internal member, it has opposed lower end and upper end, the described axial groove of a described internal member and a described body spare coaxially is provided with, and be arranged in described axial groove to small part, and can move vertically relative to a described body spare, described internal member forms an endoporus that extends vertically, the described lower end of described internal member also forms at least one first collar extension, it is formed by one first anchor ring, the shape of described first anchor ring, be suitable for holding a retractible holder, and make described holder radially stretch into described hole one preset distance, cover also forms at least one first groove that extends vertically in described, described first groove extends from described upper end to described at least one collar extension, cover also forms at least one second groove that extends vertically in described, and described second groove extends to described upper end from described lower end, and parallel with described first groove;

One first taper round pool, it is arranged in the described body spare, is positioned at the below of described transverse opening, and communicates with described axial groove, the shape of the described first taper round pool, near described transverse opening, the mode that constantly shoals with its degree of depth forms taper gradually;

One second taper round pool, it is arranged in the described body spare, is positioned at the top of described transverse opening, and communicates with described axial groove, and the shape of the described second taper round pool near described transverse opening, forms taper in the ever-increasing mode of its degree of depth gradually;

At least one retractible first holder, it is by described at least one collar extension and the restriction of the described first taper round pool, described at least one holder contacts with described at least one anchor ring, thereby cover is in described when being subjected to biased position in described, be subjected to radially inwardly pointing to the power in the described collar extension, so that stretch into described hole, described holder overlaps in described when being in described off-position, radially outwards enters the described first taper round pool;

One first eccentric wheel spare, form at least one first cleft hand at its first end, forming one first centrifugal weight part with its first end second opposed end, the shape of described first cleft hand, making can be by the described transverse opening of a described body spare, described first cleft hand forms a first passage, its shape is when described first cleft hand in the described transverse opening of a described body spare is in predetermined first configuration at least, coaxial with the described axial groove of a described body spare, and around described axial groove;

One second eccentric wheel spare, form at least one second cleft hand at its first end, forming one second centrifugal weight part with its first end second opposed end, the shape of described second cleft hand, making can be by the described transverse opening of a described body spare, described second cleft hand forms a second channel, its shape is when described second cleft hand in the described transverse opening of a described body spare is at least one predetermined configuration at least, coaxial with the described axial groove of a described body spare, and around described axial groove, the shape of described second cleft hand, make that working as described first and second cleft hands all is arranged in described transverse opening, the described axial groove of described first and second passages and a described body spare to timing, can be cooperatively interacted with described first cleft hand;

A lid installation sleeve, it forms the coaxial internal channel of described axial hole of a shape and described interior cover, and the shape of described lid installation sleeve is suitable for being arranged in to small part the described axial groove of a described body spare; With

An overcoat, it forms a cover, and described cover forms a hole that is arranged on the center, and its shape is suitable for laying the described lid installation sleeve that therefrom passes, and the configuration of described overcoat and setting are around a described body spare.

37. a lathe, its shape are suitable for driving a tool insert, described lathe comprises:

A drivable main shaft; With

A quick change chuck device, described quick change chuck device also comprises:

One has a formation body spare of an axial groove within it, and a described body spare comprises that also one is arranged to and the crossing transverse opening of described axial groove;

One first eccentric wheel spare, it forms first cleft hand that is positioned at its first end at least, the shape of described first cleft hand can be passed the described transverse opening of a described body spare, described first cleft hand forms a first passage, in the transverse opening of a described body spare, during at least the first configuration of described first cleft hand of small part, the described axial groove of its shape and a described body spare is coaxial; With

One second eccentric wheel spare, it forms second cleft hand that is positioned at its first end at least, the shape of described second cleft hand can be passed the described transverse opening of a described body spare, described second cleft hand forms a second channel, in the transverse opening of a described body spare, during at least the second configuration of described second cleft hand of small part, the described axial groove of its shape and a described body spare is coaxial.